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Setting up neighborhoods

master
jrpotter 2015-05-31 16:09:33 -04:00
parent fbc9cdc435
commit cfb43944d3
3 changed files with 49 additions and 9 deletions

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@ -8,6 +8,17 @@ import numpy as np
import matplotlib.pyplot as plt
class Bit:
"""
Represents a "bit" in a bitplane.
Note we keep track of the index for vectorization purposes. By maintaining each index
and batch updating via the given index, we can much more efficiently update the entire
bitplane.
"""
def __init__(self, value, *index):
self.value = value
self.index = index
class BitPlane:
@ -27,8 +38,24 @@ class BitPlane:
masters can exist in separate CAMs that can interact with one another.
"""
def __init__(self, *dimensions):
@staticmethod
@np.vectorize
def _populate(*indices):
"""
The following joins indices in N-dimensions together.
This information is stored in a bit (with initial value False) in order for batch processing
to be performed when actually updating values and computing whether a bit is on or off. For
example, if exploring a 4D array, we want to be able to know which bits we need to check the
status of, but this is relative to the current bit, whose position we do not know unless that
information is stored with the current bit.
"""
return Bit(False, *indices)
def __init__(self, dimen):
"""
"""
self.grid = np.zeros(dimensions)
self.grid = BitPlane._populate(*np.indices(dimen))

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@ -2,7 +2,7 @@
"""
from bitplane import Bitplane
class CAM:
@ -14,8 +14,23 @@ class CAM:
all methods needed (i.e. supported) to interact/configure the cellular automata as desired.
"""
def __init__(self):
def __init__(self, bps=1, dimen=(100,100)):
"""
"""
self._dimen = dimen
self._bitplanes = [BitPlane(dimen) for i in bps]
self._master = self._bitplanes[0].grid if bps > 0 else None
def tick(self, ruleset, neighborhood):
"""
The tick function should be called whenever we want to change the current status of the grid.
Every time the tick is called, the ruleset is applied to each cell and the next configuration
is placed into the master grid. Depending on the timing specifications set by the user, this
may also change secondary bitplanes (the master is always updated on each tick).
"""
pass

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@ -33,10 +33,6 @@ class Cells(enum.Enum):
FORWARD = 1 << 10
BACKWARD = 1 << 11
# Shortcuts
NEUMANN = NORTH | EAST | SOUTH | WEST
MOORE = NORTH | NORTHEAST | EAST | SOUTHEAST | SOUTH | SOUTHWEST | WEST | NORTHWEST | NORTH
class Neighborhood:
"""
@ -52,5 +48,7 @@ class Neighborhood:
This allows indexing at levels beyond 3D, which the Cells enumeration does not allow, though visualization
at this point isn't possible.
"""
def __init__(self, grid):
pass